Pauline Cushman, actress and a spy for the Union during the Civil War. President Lincoln made her a brevet major for her service during the war. 1865.
Former 1st SFOD-D SGM Pat McNamara at the Berlin Wall, undercover during the Cold War to spy on the Soviet Army. 1989.
SPY? How is anyone NOT going to think he is spook?
No one will notice the TANK queuing up for the bus!